[Elecraft] K3 Single Band SWR problem

[Wim K6TE]

Craig,

I saw the same problem on S/N 593 yesterday after the upgrade, I had SWR 3.0
on 20m
band only. I tried switching bands, changing the tune power etc and it
sometimes went away.
Today I can't reproduce the problem anymore ...  I don't have the build-in
tuner by the way.

- Wim


Craig D. Smith wrote:
> 
> 
> My first real problem (or operator error?) with K3 SN 608 just occurred. 
> I
> got on 20 CW with my usual antenna (a resonant dipole) and the K3 is
> showing
> a 2:1 SWR and folding back power.  I bypass the tuner with this antenna
> since its SWR is in the 1.2 to 1.3 range.  My external SWR meter shows the
> usual 1.3.  If I engage the K3 tuner it will tune to a 1:1 indication on
> the
> K3 meter and register the requested output power, but the actual output
> power measured externally is in the range of 70 to 80 W for 100W on the K3
> meter.
> 
> Next I tried a known good dummy load and the K3 acts the same with it -
> indicates a 2 to 1 SWR.  Interestingly, it works fine with the dummy load
> on
> all the other bands (shows 1.0 to 1 SWR) except 20.  It has worked fine
> before on 20 with this same antenna and as far as I know nothing has
> changed.  I'm running firmware version 1.78. 
> 
> Will welcome any ideas or suggestions
> 
>           Thanks
>                        ... Craig  AC0DS
> 
> 
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
> 
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
> 
> 

-- 
View this message in context: http://www.nabble.com/K3-Single-Band-SWR-problem-tp17070719p17071495.html
Sent from the Elecraft mailing list archive at Nabble.com.